export const ADD_TO_HISTORY = 'ADD_TO_HISTORY'
export const CLEAR_HISTORY = 'CLEAR_HISTORY'
export const RECEIVE_ARTICLES = 'RECEIVE_ARTICLES'
export const ENABLE_ARTICLE = 'ENABLE_ARTICLE'
export const CLEAR_SUCCESS = 'CLEAR_SUCCESS'
export const CLEAR_FAIL = 'CLEAR_FAIL'